prepare neuron-tim namespace for Tim's future Neuron instance

Adds the neuron-tim namespace (via Terraform) and a full Argo CD
app + k8s manifests mirroring neuron-prod. All deployments set to
replicas=0 — nothing runs until Tim's imprint is ready and Vault
secrets are populated at secret/neuron-technologies/tim.

servers/legion/apps/neuron-tim.yaml

@@ -0,0 +1,20 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: neuron-tim
+  namespace: argocd
+spec:
+  project: default
+  source:
+    repoURL: http://10.43.1.53:3000/will/infrastructure.git
+    targetRevision: main
+    path: servers/legion/k8s/neuron-technologies/tim
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: neuron-tim
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=false